Fig. 4

Receiver operating characteristics curves of different parameters and models for predicting all-cause mortality during follow-up. NT-pro-BNP – N-terminal pro-B-Type natriuretic peptide, fT3/fT4 – Free Triiodothyronine/Free Thyroxine ratio, NYHA – New York Heart Association functional class. Combined model - composed by parameters of age, NYHA class, NT-pro-BNP, and fT3/fT4